WO2007058476A2 - Antimicrobial coating based on kimchi lactic acid bacteria - Google Patents
Antimicrobial coating based on kimchi lactic acid bacteria Download PDFInfo
- Publication number
- WO2007058476A2 WO2007058476A2 PCT/KR2006/004816 KR2006004816W WO2007058476A2 WO 2007058476 A2 WO2007058476 A2 WO 2007058476A2 KR 2006004816 W KR2006004816 W KR 2006004816W WO 2007058476 A2 WO2007058476 A2 WO 2007058476A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- article
- acid bacteria
- lactic acid
- culture fluid
- bacteria culture
- Prior art date
Links
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 241000894006 Bacteria Species 0.000 title claims abstract description 124
- 235000021109 kimchi Nutrition 0.000 title claims abstract description 81
- 239000004310 lactic acid Substances 0.000 title claims abstract description 70
- 235000014655 lactic acid Nutrition 0.000 title claims abstract description 70
- 230000000845 anti-microbial effect Effects 0.000 title claims abstract description 51
- 238000000576 coating method Methods 0.000 title claims description 33
- 239000011248 coating agent Substances 0.000 title claims description 32
- 239000012531 culture fluid Substances 0.000 claims abstract description 87
- 239000002923 metal particle Substances 0.000 claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- -1 acryl Chemical class 0.000 claims description 7
- 239000002386 air freshener Substances 0.000 claims description 7
- 241001627205 Leuconostoc sp. Species 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 238000004851 dishwashing Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 241001468192 Leuconostoc citreum Species 0.000 claims description 4
- 241000192129 Leuconostoc lactis Species 0.000 claims description 4
- 241000873388 Weissella sp. Species 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 241000186610 Lactobacillus sp. Species 0.000 claims description 3
- 241000965142 Leuconostoc kimchii Species 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 229920003043 Cellulose fiber Polymers 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 240000001046 Lactobacillus acidophilus Species 0.000 claims description 2
- 235000013956 Lactobacillus acidophilus Nutrition 0.000 claims description 2
- 240000001929 Lactobacillus brevis Species 0.000 claims description 2
- 235000013957 Lactobacillus brevis Nutrition 0.000 claims description 2
- 244000199885 Lactobacillus bulgaricus Species 0.000 claims description 2
- 235000013960 Lactobacillus bulgaricus Nutrition 0.000 claims description 2
- 241001134659 Lactobacillus curvatus Species 0.000 claims description 2
- 241001647418 Lactobacillus paralimentarius Species 0.000 claims description 2
- 241000866650 Lactobacillus paraplantarum Species 0.000 claims description 2
- 240000006024 Lactobacillus plantarum Species 0.000 claims description 2
- 235000013965 Lactobacillus plantarum Nutrition 0.000 claims description 2
- 241001582342 Lactobacillus sakei subsp. sakei Species 0.000 claims description 2
- 241000192132 Leuconostoc Species 0.000 claims description 2
- 241000192003 Leuconostoc carnosum Species 0.000 claims description 2
- 241000201465 Leuconostoc gelidum subsp. gasicomitatum Species 0.000 claims description 2
- 241000779470 Leuconostoc inhae Species 0.000 claims description 2
- 241001468194 Leuconostoc mesenteroides subsp. dextranicum Species 0.000 claims description 2
- 241001468195 Leuconostoc mesenteroides subsp. mesenteroides Species 0.000 claims description 2
- 241000975185 Weissella cibaria Species 0.000 claims description 2
- 241000412433 Weissella hanii Species 0.000 claims description 2
- 241000384856 Weissella koreensis Species 0.000 claims description 2
- 241000010758 Weissella soli Species 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims description 2
- 229940039695 lactobacillus acidophilus Drugs 0.000 claims description 2
- 229940004208 lactobacillus bulgaricus Drugs 0.000 claims description 2
- 229940072205 lactobacillus plantarum Drugs 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 241000186660 Lactobacillus Species 0.000 claims 1
- 241000202221 Weissella Species 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 229940039696 lactobacillus Drugs 0.000 claims 1
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 26
- 230000002155 anti-virotic effect Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 19
- 241000700605 Viruses Species 0.000 abstract description 18
- 238000001228 spectrum Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 21
- 229910052782 aluminium Inorganic materials 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 241000712461 unidentified influenza virus Species 0.000 description 6
- 241000588724 Escherichia coli Species 0.000 description 5
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 5
- 241000191967 Staphylococcus aureus Species 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 241000233866 Fungi Species 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 230000005757 colony formation Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006137 Luria-Bertani broth Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010944 silver (metal) Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 206010012438 Dermatitis atopic Diseases 0.000 description 1
- 241000192130 Leuconostoc mesenteroides Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000186675 Weissella confusa Species 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 201000008937 atopic dermatitis Diseases 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 230000000120 cytopathologic effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000009088 enzymatic function Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000001524 infective effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000003292 kidney cell Anatomy 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 239000005060 rubber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
Definitions
- the present invention relates to an article with an antimicrobial property and a manufacturing method thereof, and more particularly, to an article with an antimicrobial property, and a manufacturing method thereof which gives the antimicrobial property to a surface of an article which bacteria or viruses may contact to proliferate themselves, by using the Kimchi lactic acid bacteria culture fluid with antibacterial and antivirus effects.
- electric home appliances needing the hygiene and cleanliness include a refrigerator, washing machine, drying machine, air oonditioner, air freshener, fan, cleaner, electric pot, electric cooker, dishwashing machine, dish drying machine, microwave oven, mixer, VTR, television, home theater, etc..
- Bacteria or fungi which can be parasitic on the surfaces of the products or the surfaces of the components thereof cause diseases such as atopic dermatitis, respiratory trouble, etc., disfigure the products, generate a bad smell, and discolor the external appearances of the. products. It is thus necessary to manufacture an antimicrobial article for protecting the users from the diseases and keeping the external appearances of the products, by preventing the oontact and proliferation of various bacteria and fungi.
- the Kimchi lactic acid bacteria have been known as a natural antibacterial material with an excellent antibacterial property and a wide antibacterial spectrum.
- the Kimchi lactic acid bacteria culture fluid oould inhibit activities of avian influenza viruses and other viruses with the similar mechanism to that of avian influenza viruses. [6] Accordingly, the present inventors have accomplished this invention by giving the antimicrobial property to a surface of an article, paying attention to the antibacterial and antivirus effects of the Kimchi lactic acid bacteria culture fluid.
- An object of the present invention is to provide an article with an antimicrobial property coated with the Kimchi lactic acid bacteria culture fluid having antibacterial and antivirus effects.
- Another object of the present invention is to provide a manufacturing method of an article having an antimicrobial property which coats the Kimchi lactic add bacteria culture fluid with antibacterial and antivirus effects on the surface of the article.
- an article with an antimicrobial property which is coated with the Kimchi lactic acid bacteria culture fluid, or both the Kinxhi lactic acid bacteria culture fluid and nano metal particles.
- a manufacturing method of an article with an antimicrobial property including a step for coating the Kimchi lactic acid bacteria culture fluid or both the Kinxhi lactic acid bacteria culture fluid and nano metal particles on the surface of the article.
- the present invention provides the article with the antimicrobial property coated with the Kimchi lactic add bacteria culture fluid or both the Kinxhi lactic add bacteria culture fluid and nano metal particles.
- the antimicrobial property includes an antibacterial property, an antifungal property and an antivirus property.
- the article means all kinds of articles which bacteria, viruses, etc. may contact to proliferate themselves without spedal restrictions in use of the article. Therefore, the article can be unlimitedly manufactured according to a method publicly known in this field, for example, injection molding, extrusion molding, blow molding and thermal molding.
- the article can be one of electric home appliances.
- the electric home appliances mean the whole electric home appliances or the internal or external parts thereof.
- Exemplary electric home appliances include a refrigerator, washing machine, drying machine, air conditioner, air freshener, fan, cleaner, electric pot, electric cooker, dishwashing machine, dish drying machine, water purifier, microwave oven, mixer, VTR, television and home theater.
- the parts of the electric home appliances are varied according to the kinds of the electric home appliances.
- the parts of the washing machine are an inner tub, an outer tiib, a detergent box, a drum lift, a water supply/drain passage, a filter, etc.
- the parts of the refrigerator are an inner/Outer wall, a cool air duct, a ventilation fan, a door handle, a vegetable box, an ice maker, a filter, etc.
- the parts of the air conditioner are an electric heat exchanger, a ventilation fan, an air passage, a filter, etc.
- Any kinds of raw materials which can form the whole electric home appliance or the forming member thereof can be used without special restrictions.
- thermoplastic resin, thermosetting resin, rubber and metal can be used as the raw materials.
- the raw materials can be used in various ways according to their characteristics.
- the article can be a filter. Any article performing the filtering function can be used without special restrictions in use, kind and type. Exemplary articles include an air filter, a water filter arid, a cleaner filter. Any kinds of materials having the filtering function can be used as a material of the filter without special restrictions in kind, type, size and manufacturing process. Exemplary materials. include a glass fiber, an ion exchange fiber, a cellulose fiber and an asbestos fiber, various organic and inorganic fibers, a metal such as zinc, copper and aluminum, and a plastic. Such materials can be variously used depending on their characteristics.
- the type of the filter can be appropriately modified depending on an apparatus using the filter without special restrictions, such as honeycomb type, grain type, net type, filter paper type, cotton type, mesh type, plate type and foam type.
- the filter can be used singly or in combination with the existing filter in the same product.
- the article can be an air filter. Any article performing the air filtering function can be used as the air filter without special restrictions in kind, type, size and manufacturing process. Also, the type of the air filter can be appropriately modified depending on an apparatus using the filter without special restrictions.
- the air filter can replace a deodorization filter such as an activated charcoal filter, an aluminum mesh filter, a carbon filter, and a HEPA filter which are used in various electric home appliances such as a refrigerator, an air conditioner and an air freshener, and a filter of an air purifier of a vehicle, or can be used in combination with the existing filters.
- a deodorization filter such as an activated charcoal filter, an aluminum mesh filter, a carbon filter, and a HEPA filter which are used in various electric home appliances such as a refrigerator, an air conditioner and an air freshener, and a filter of an air purifier of a vehicle, or can be used in combination with the existing filters.
- the Kimchi lactic add bacteria culture fluids acquired through various routes can be used without special restrictions, so far as they have the antibacterial and antivirus effects.
- the Kirrchi lactic acid bacteria culture fluid can be directly extracted from Kirrchi, extracted from the cultivated Kimchi lactic add bacteria, or purchased in a market. Any publicly-known method can be used to cultivate and extract the Kimchi lactic add bacteria without spedal restrictions.
- any phases of Kimchi lactic add bacteria culture fluids can be used without spedal restrictions, so far as they have the antibacterial and antivirus effects.
- the Kimchi lactic add bacteria culture fluid can be selected from the group consisting of the Kimchi lactic add bacteria culture fluid itself, a concentrate of the Kimchi lactic add bacteria culture fluid, a dry matter of the Kinxhi lactic add bacteria culture fluid, and mixtures thereof. Any publicly-known method can be used to concentrate and dry the Kimchi lactic add basteria culture fh ⁇ d without spedal restrictions.
- the Kinxhi lactic add. bacteria are selected from the group consisting of
- the Leuconostoc sp. Kimchi lactic add bacteria are selected from the group consisting of Leuconostoc citreum, Leuconostoc lactis, Leuconostoc mesenteroides subsp. dextranicum, Leuconostoc mesenteroides subsp. mesenteroides, Leuconostoc argentinum, Leuconostoc carnosum, Leuconostoc gellidum, Leuconostoc kimchii, Leuconostoc inhae, Leuconostoc gasicomitatum, and mixtures thereof. More preferably, the Leuconostoc sp. Kimchi lactic add bacteria are selected from the group consisting of Leuconostoc citreum, Leuconostoc kimchii, Leuconostoc mesenteroides, and mixtures thereof.
- the Lactobacillus sp. Kimchi lactic add bacteria are selected from the group consisting of Lactobacillus brevis, Lactobacillus acidophilus, Lactobacillus bulgaricus, Lactobacillus plantarum, Lactobacillus kimchii, Lactobacillus para- plantarum, Lactobacillus curvatus subsp. curvatus, Lactobacillus sakei subsp. sakei, and mixtures thereof.
- the Weissella sp. Kimchi lactic add bacteria are selected from the group consisting of Weissella koreensi, Weissella hanii, Weissella kimchii, Weissella soli, Weissella confusa, and mixtures thereof.
- the Kirrchi lactic acid bacteria can be used with a binder.
- Silicone modified acryl resin, urethane resin, acryl resin and silicone resin can be used as the binder, which is not intended to be limiting. That is, various kinds of binders can be employed.
- the binder serves to easily fix the Kimchi lactic acid bacteria to the surface of the article, and improve the inter-coupling action between the surface of the article needing the antimicrobial property and the Kimchi lactic acid bacteria. As a result, the binder reduces the elution rate of the Kinxhi lactic acid bacteria, and maintains the antimicrobial performance.
- any kinds of metal particles having a sterilizing function can be used as the ⁇ ano metal particles without special restrictions.
- Exemplary metal particles include Ag, Zn, Cu, Pt, Cd, Pd, Rh and Cr particles.
- the metal particles can be singly or mixedly used.
- the nano metal particles mean metal particles made in a nano size. Any kinds of metal particles made in a nano size can be used without special restrictions in manufacturing process.
- the nano metal particles prevent propagation of microorganisms such as bacteria, fungi, etc, by restricting the reproduction function of the microorganisms, and interrupt the metabolism of the microorganisms by infiltrating into cells and stopping the enzyme function required in respiration, thereby performing sterilization.
- the nano metal particles are preferably Ag, Zn and Cu nano metal particles, more preferably, nano Ag.
- the nano Ag can improve the efficiency of the Kimchi lactic aid bacteria culture fluid.
- the Kinxhi lactic acid bacteria culture fluid can be singly coated on the surface of the article, for giving the antimicrobial property.
- both the Kimchi lactic acid bacteria culture fluid and the nano metal particles can be coated on the surface of the article, for giving the antimicrobial property.
- the synergy of the Kimchi lactic acid bacteria culture fluid with the antibacterial and antivirus effects and the nano metal particles with the antibacterial function can be used singly or in combination with the nano metal particles.
- the surface of the article Preferably, 5 to 20 wt% of Kimchi lactic acid bacteria culture fluid and 100 to 2000 ppm of nano metal particles are coated on the surface of the article.
- This range semipermanently gives the antimicrobial property to the surface of the article in consideration of the antibacterial and antivirus effects over 99%, the ooating characteristic and the mixing characteristic. However, if necessary, it can be appropriately adjusted.
- the present invention also provides the manufacturing method of the article with the antimicrobial property which includes a step for coating the Kimchi lactic acid bacteria culture fluid or both the Kimchi lxtic acid bacteria culture fluid and the nano metal particles on the surface of the article.
- the step for coating the surface of the article with the Kimchi lactic acid bacteria culture fluid, or both the Kimchi lxtic acid bacteria culture fluid and the nano metal particles can be performed according to a general method in the field to which the present invention pertains. Any kinds of methods which can evenly coat the surface of . the article can be used.
- the Kimchi lactic add bacteria culture fluid can be coated directly on the surface of the article.
- An appropriate fixation technique can be chemically or mechanically used to fix the Kimchi lactic add bxteria culture fluid to the surface of the article.
- a method of preparing a coating solution containing the Kimchi lactic acid bacteria culture fluid, and spraying the coating solution to the surface of the article or dipping the article in the ooating solution can be. used to coat the surface of the article.
- the coating solution can be water or ethanol, which is not intended to be limiting.
- any solution containing the Kimchi lactic add bacteria culture fluid at an appropriate amount and giving the antimicrobial property to the surface of the article by ooating can be used as the coating solution without spe ⁇ al restrictions in kind and manufacturing process.
- the publicly-known spraying method such as air spray can be used, which is not intended to be limiting. Any kinds of methods which can evenly coat the surface of the article can be employed. In addition, the general dipping method can be used without spedal restrictions.
- the amount of the Kimchi lactic add bacteria culture fluid ranges from 5 to 20 wt%, which is not intended to be limiting. If necessary, the amount of the Kimchi lactic add bacteria culture fluid can be appropriately adjusted.
- the Kimchi lactic add bacteria culture fluid and the nano metal particles can be sequentially coated on the surface of the target article.
- the nano metal particles is coated on the surface of the article, and then the Kirrchi lactic acid bacteria culture fluid is coated on the surface of the article coated with the nano metal particles.
- the step for coating the nano metal particles on the surface of the article can be performed according to a method publicly known in this field. If necessary, the nano metal particles can be modified for easy coating depending on the characteristic of the article.
- the step for coating the Kirrchi lactic acid bacteria culture fluid on the surface of the article coated with the nano metal particles can be performed according to a method generally used in this field without special restrictions.
- a chemical or mechanical method can be appropriately used to fix the Kimchi lactic acid bacteria to the article coated with the nano metal particles. Any method of evenly coating the surface of the article, such as spraying and dipping can be used for coating.
- the amount of the Kirrchi lactic acid bacteria culture fluid ranges from 5 to 20 wt%, and the content of the nano metal particles ranges from 100 to 2000 ppm. This range semipermanently gives the antimicrobial property to the surface of the article in consideration of the antibacterial and antivirus effects over 99%, the coating characteristic and the mixing characteristic. However, if necessary, this range can be appropriately adjusted.
- the Kirrchi lactic acid bacteria culture fluid in the case that the Kirrchi lactic acid bacteria culture fluid is coated on the surface of the article, the Kimchi lactic acid bacteria culture fluid can be mixed with the binder before the coating step.
- the binder improves the inter-coupling action between the surface of the article and the Kimchi lactic acid bacteria culture fluid, and reduces the elution rate of the Kimchi lactic add bacteria culture fluid, thereby maintaining the antimicrobial performance. Accordingly, it is more advantageous to mix the Kirrchi lactic add bacteria culture fluid with the binder than to singly use the Kirrchi lactic add bacteria culture fluid.
- any method of mixing the Kimchi lactic add bacteria culture fluid with the binder can be used without special restrictions, so far as the Kirrchi lactic acid bacteria culture fluid can be coated on the surface of the article.
- the content ratio of the Kinxhi lactic acid bacteria culture fluid to the binder is not specially restricted but appropriately adjusted. If necessary, an inorganic pigment can be added.
- the coating solution containing the Kinxhi lactic add bacteria culture fluid and the nano metal particles was prepared, and spray-coated on an aluminum mesh filter, thereby obtaining the filter with the antimicrobial property.
- Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa were used to test the antibacterial activity of the filter with the antimicrobial property.
- the filter with the antimicrobial property showed excellent antibacterial activity to Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa.
- H5N1 which was an avian influenza virus, was used to test the antivirus activity of the filter. As a result, the filter showed a high virus reduction rate.
- the manufacturing method can further include a step for washing the target article with proper wash water, and a step for drying the article by a thermal treatment after the washing, prior to coating the Kinxhi lactic acid bacteria culture fluid on the surface of the article.
- the manufacturing method can further include a step for drying the article naturally or by a thermal treatment after coating the Kimchi lactic acid bacteria culture fluid on the surface of the article.
- the thermal treatment serves to fix the Kinxhi lactic acid bacteria culture fluid and the nano metal . particles to the surface of the article.
- a drying time and a drying temperature of the article are adjustable according to the shape, kind and size of the article. In case the target article is made of metal, it is advantageous to remove oil elements sticking to the surface of the article in the manufacturing or keeping process.
- the manufactured article can be post-processed into a wanted shape and appropriately used.
- the air filter can be cut into a wanted size and used as a filter of an air purifier.
- the air filter can be used singly or in combination with the existing air filter and deodorization filter in the same product.
- the air filter can be applied to various air purifiers for home or business use, refrigerators, vehicles, and other electric home appliances.
- Kimchi lactic aid bacteria was mixed with 15 g of silicone modified acryl resin binder, 3 g of nano zinc, 1 g of nano silver and 0.5 g of nano copper, and dissolved in a water as a solvent, thereby preparing a coating solution containing Kimchi lactic acid bacteria culture fluid.
- the coating solution was air-sprayed on the aluminum mesh prepared in Example 1 and then the coated aluminum mesh was dried. Obtained was an aluminum mesh filter sample coated with the Kimchi lactic acid bacteria culture fluid and the nano metal particles.
- Test Example 1 Antibacterial property test
- Example 2 The antibacterial property of the aluminum mesh coated with theKimchi lactic acid bacteria culture fluid in Example 2 was tested according to a shake flask method (KS M 0146-2003) by using Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 6538) and Pseudomonas aeruginosa (ATCC 27853).
- the aluminum mesh filter coated with the Kirrchi lactic add bacteria culture fluid has excellent antibacterial activity to microorganisms, such as Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa.
- Test Example 2 Antivirus property test
- a coating solution containing Kimchi lactic add bacteria culture fluid was prepared and sprayed on surfaces of an aluminum mesh filter, a carbon filter and a HEPA filter, respectively, thereby obtaining three kinds of filter samples coated with the Kirrchi lactic acid bacteria culture fhid.
- the antivirus property test was performed on each filter.
- Avian influenza virus H5N1 isolate was used to test the antivirus effect of the
- a virus solution (1/10 v/v) diluted with PBS was added to each well containing the three kinds of samples (aluminum mesh filter, carbon filter and HEPA filter, respectively) coated with the Kimchi lactic acid bacteria culture fluid, and incubated at 37°C. for comparison, the virus solution was incubated in the same manner in regard to the same three samples which were not coated with theKimchi lactic acid bacteria culture fhid. The weight of each sample was recorded before addition of the virus solution.
- a culture inoculated with the virus solution and a culture which was not inoculated with the virus solution were prepared for a positive comparison and a negative comparison to the viral cytopathic effect (vCPE), respectively.
- virus reduction rate was a percentage value of logTCID /ml converted by using a value obtained by subtracting the weight of the sample which was not coated with the Kirrchi lactic acid bacteria culture fluid from the weight of the sample coated with the Kirrchi lactic acid bacteria culture fluid.
- Tables 4 to 6 The results are shown in the following Tables 4 to 6.
- the aluminum mesh filter, the carbon filter and the HEPA filter coated with the Kinrhi lactic acid bacteria culture fluid have the virus reduction rate almost over 99%, namely, the excellent antivirus effect.
- the article can be used for various uses.
- the electric home appliances needing the antimicrobial property are a refrigerator, washing machine, air conditioner, cleaner, air freshener, water purifier, humidifier, dishwashing machine, microwave oven, VTR, computer, television, etc..
- the present invention can be applied to an inner wall, a cool air duct, a ventilation fan, a door handle, a vegetable box, an air filter, an ice maker, a basket, and an outer surface of the refrigerator.
- the surfaces of the parts of the washing machine such as an inner tub, an outer tub, a pulsator, a detergent box, a drum lift and a tub can be coated.
- the present invention can be applied to filters (air filter and water filter) in a dry passage, a water supply/ drain passage, and a circulation passage.
- the present invention can be applied to fins of a heat exchanger, an electric heat exchanger (ventilation element), a ventilation fan (metal and molded matter), an air passage (suction unit, discharge unit, louvers, grill, etc.), and an air filter of an indoor unit.
- a special Kirrchi lactic add bacteria culture fluid filter can be mounted as one of multiple filters of the air freshener.
- the user often touches the cleaner with his/her hands. Therefore, the surface of the cleaner can be coated.
- the sterilization effect can be improved by coating an inside of a dust container.
- the present invention can also be applied to an exhaust filter of the cleaner.
- the present invention can be applied to a tub, a sump, a screen, a spray arm, a water filter, etc.
- the article needing the antimicrobial effect is provided with the antimicrobial property, by using the Kimchi lactic add bacteria culture fluid with the wide antibacterial spectrum singly or in combination with the nano metal particles.
- the article is also provided with the antivirus property to avian influenza viruses and other viruses with the similar mechanism to that of avian influenza viruses due to the excellent antivirus activity of the Kimchi lactic add bacteria culture fluid.
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Abstract
The present invention discloses an article with an antimicrobial property, and a manufacturing method thereof which gives the antimicrobial property to a surface of an article which bacteria or viruses may contact to proliferate themselves, by using the Kimchi lactic acid bacteria culture fluid with antibacterial and antivirus effects. The article needing the antimicrobial effect is provided with the antimicrobial property, by using the Kimchi lactic add bacteria culture fluid with a wide antibacterial spectrum singly or in combination with nano metal particles.
Description
Description
ARTICLES WITH ANTIMICROBIAL PROPERTY AND MANUFACTURING METHOD THEREOF
Technical Field
[1] The present invention relates to an article with an antimicrobial property and a manufacturing method thereof, and more particularly, to an article with an antimicrobial property, and a manufacturing method thereof which gives the antimicrobial property to a surface of an article which bacteria or viruses may contact to proliferate themselves, by using the Kimchi lactic acid bacteria culture fluid with antibacterial and antivirus effects. Background Art
[2] Recently, with the increasing interest in the hygiene and cleanliness, a number of products have been developed to improve the hygiene and cleanliness. The electronic product field is not an exception. In detail, electric home appliances needing the hygiene and cleanliness include a refrigerator, washing machine, drying machine, air oonditioner, air freshener, fan, cleaner, electric pot, electric cooker, dishwashing machine, dish drying machine, microwave oven, mixer, VTR, television, home theater, etc..
[3] Bacteria or fungi which can be parasitic on the surfaces of the products or the surfaces of the components thereof cause diseases such as atopic dermatitis, respiratory trouble, etc., disfigure the products, generate a bad smell, and discolor the external appearances of the. products. It is thus necessary to manufacture an antimicrobial article for protecting the users from the diseases and keeping the external appearances of the products, by preventing the oontact and proliferation of various bacteria and fungi.
[4] Generally, most of antibacterial agents for manufacturing an antibacterial article are chemically synthesized, to require the high cost and cause harmful side effects. Recently, researches have been actively made on a natural antibacterial material which has an excellent antibacterial property and no side effects harmful for a human body.
[5] Kimchi lactic acid bacteria are generated in fermentation and mature of Kimchi.
Safety of the Kimchi lactic acid bacteria as the natural source has been verified by the long time use. It is easy to acquire the Kimchi lactic acid bacteria at a low cost. In addition, the Kimchi lactic acid bacteria have been known as a natural antibacterial material with an excellent antibacterial property and a wide antibacterial spectrum. Moreover, there has been reported that the Kimchi lactic acid bacteria culture fluid
oould inhibit activities of avian influenza viruses and other viruses with the similar mechanism to that of avian influenza viruses. [6] Accordingly, the present inventors have accomplished this invention by giving the antimicrobial property to a surface of an article, paying attention to the antibacterial and antivirus effects of the Kimchi lactic acid bacteria culture fluid.
Disclosure of Invention
Technical Problem [7] An object of the present invention is to provide an article with an antimicrobial property coated with the Kimchi lactic acid bacteria culture fluid having antibacterial and antivirus effects. [8] Another object of the present invention is to provide a manufacturing method of an article having an antimicrobial property which coats the Kimchi lactic add bacteria culture fluid with antibacterial and antivirus effects on the surface of the article.
Technical Solution [9] In order to achieve the above-described objects of the invention, there is provided an article with an antimicrobial property, which is coated with the Kimchi lactic acid bacteria culture fluid, or both the Kinxhi lactic acid bacteria culture fluid and nano metal particles. [10] There is also provided a manufacturing method of an article with an antimicrobial property, including a step for coating the Kimchi lactic acid bacteria culture fluid or both the Kinxhi lactic acid bacteria culture fluid and nano metal particles on the surface of the article.
Mode for the Invention
[11] The present invention will now be described in detail.
[12] The present invention provides the article with the antimicrobial property coated with the Kimchi lactic add bacteria culture fluid or both the Kinxhi lactic add bacteria culture fluid and nano metal particles. [13] Here, the antimicrobial property includes an antibacterial property, an antifungal property and an antivirus property. [14] The article means all kinds of articles which bacteria, viruses, etc. may contact to proliferate themselves without spedal restrictions in use of the article. Therefore, the article can be unlimitedly manufactured according to a method publicly known in this field, for example, injection molding, extrusion molding, blow molding and thermal molding.
[15] In accordance with one aspect of the present invention, the article can be one of electric home appliances. The electric home appliances mean the whole electric home appliances or the internal or external parts thereof. Exemplary electric home appliances include a refrigerator, washing machine, drying machine, air conditioner, air freshener, fan, cleaner, electric pot, electric cooker, dishwashing machine, dish drying machine, water purifier, microwave oven, mixer, VTR, television and home theater. The parts of the electric home appliances are varied according to the kinds of the electric home appliances. Ibr example, the parts of the washing machine are an inner tub, an outer tiib, a detergent box, a drum lift, a water supply/drain passage, a filter, etc., the parts of the refrigerator are an inner/Outer wall, a cool air duct, a ventilation fan, a door handle, a vegetable box, an ice maker, a filter, etc., and the parts of the air conditioner are an electric heat exchanger, a ventilation fan, an air passage, a filter, etc. Any kinds of raw materials which can form the whole electric home appliance or the forming member thereof can be used without special restrictions. Ibr example, thermoplastic resin, thermosetting resin, rubber and metal can be used as the raw materials. The raw materials can be used in various ways according to their characteristics.
[16] In accordance with another aspect of the present invention, the article can be a filter. Any article performing the filtering function can be used without special restrictions in use, kind and type. Exemplary articles include an air filter, a water filter arid, a cleaner filter. Any kinds of materials having the filtering function can be used as a material of the filter without special restrictions in kind, type, size and manufacturing process. Exemplary materials. include a glass fiber, an ion exchange fiber, a cellulose fiber and an asbestos fiber, various organic and inorganic fibers, a metal such as zinc, copper and aluminum, and a plastic. Such materials can be variously used depending on their characteristics. The type of the filter can be appropriately modified depending on an apparatus using the filter without special restrictions, such as honeycomb type, grain type, net type, filter paper type, cotton type, mesh type, plate type and foam type. In accordance with the present invention, the filter can be used singly or in combination with the existing filter in the same product.
[17] In accordance with the present invention, the article can be an air filter. Any article performing the air filtering function can be used as the air filter without special restrictions in kind, type, size and manufacturing process. Also, the type of the air filter can be appropriately modified depending on an apparatus using the filter without special restrictions. In accordance with the present invention, the air filter can replace a deodorization filter such as an activated charcoal filter, an aluminum mesh filter, a
carbon filter, and a HEPA filter which are used in various electric home appliances such as a refrigerator, an air conditioner and an air freshener, and a filter of an air purifier of a vehicle, or can be used in combination with the existing filters.
[18} In accordance with the present invention, the Kimchi lactic add bacteria culture fluids acquired through various routes can be used without special restrictions, so far as they have the antibacterial and antivirus effects. R>r example, the Kirrchi lactic acid bacteria culture fluid can be directly extracted from Kirrchi, extracted from the cultivated Kimchi lactic add bacteria, or purchased in a market. Any publicly-known method can be used to cultivate and extract the Kimchi lactic add bacteria without spedal restrictions.
[19] In addition, any phases of Kimchi lactic add bacteria culture fluids can be used without spedal restrictions, so far as they have the antibacterial and antivirus effects. R>r example, the Kimchi lactic add bacteria culture fluid can be selected from the group consisting of the Kimchi lactic add bacteria culture fluid itself, a concentrate of the Kimchi lactic add bacteria culture fluid, a dry matter of the Kinxhi lactic add bacteria culture fluid, and mixtures thereof. Any publicly-known method can be used to concentrate and dry the Kimchi lactic add basteria culture fhϊd without spedal restrictions.
[20] Preferably, the Kinxhi lactic add. bacteria are selected from the group consisting of
Leuconostoc sp. Kimchi lactic add bacteria, Lactobacillus sp. Kimchi lactic add bacteria, Weissella sp. Kimchi lactic add bacteria, and mixtures thereof.
[21] Preferably, the Leuconostoc sp. Kimchi lactic add bacteria are selected from the group consisting of Leuconostoc citreum, Leuconostoc lactis, Leuconostoc mesenteroides subsp. dextranicum, Leuconostoc mesenteroides subsp. mesenteroides, Leuconostoc argentinum, Leuconostoc carnosum, Leuconostoc gellidum, Leuconostoc kimchii, Leuconostoc inhae, Leuconostoc gasicomitatum, and mixtures thereof. More preferably, the Leuconostoc sp. Kimchi lactic add bacteria are selected from the group consisting of Leuconostoc citreum, Leuconostoc kimchii, Leuconostoc mesenteroides, and mixtures thereof.
[22] Preferably, the Lactobacillus sp. Kimchi lactic add bacteria are selected from the group consisting of Lactobacillus brevis, Lactobacillus acidophilus, Lactobacillus bulgaricus, Lactobacillus plantarum, Lactobacillus kimchii, Lactobacillus para- plantarum, Lactobacillus curvatus subsp. curvatus, Lactobacillus sakei subsp. sakei, and mixtures thereof.
[23] Preferably, the Weissella sp. Kimchi lactic add bacteria are selected from the group
consisting of Weissella koreensi, Weissella hanii, Weissella kimchii, Weissella soli, Weissella confusa, and mixtures thereof.
[24] In accordance with the present invention, the Kirrchi lactic acid bacteria can be used with a binder. Silicone modified acryl resin, urethane resin, acryl resin and silicone resin can be used as the binder, which is not intended to be limiting. That is, various kinds of binders can be employed. In the case that the Kimchi lactic acid bacteria are not singly used but used with the binder, the binder serves to easily fix the Kimchi lactic acid bacteria to the surface of the article, and improve the inter-coupling action between the surface of the article needing the antimicrobial property and the Kimchi lactic acid bacteria. As a result, the binder reduces the elution rate of the Kinxhi lactic acid bacteria, and maintains the antimicrobial performance.
[25] In accordance with the present invention, any kinds of metal particles having a sterilizing function can be used as the ήano metal particles without special restrictions. Exemplary metal particles include Ag, Zn, Cu, Pt, Cd, Pd, Rh and Cr particles. The metal particles can be singly or mixedly used. The nano metal particles mean metal particles made in a nano size. Any kinds of metal particles made in a nano size can be used without special restrictions in manufacturing process. The nano metal particles prevent propagation of microorganisms such as bacteria, fungi, etc, by restricting the reproduction function of the microorganisms, and interrupt the metabolism of the microorganisms by infiltrating into cells and stopping the enzyme function required in respiration, thereby performing sterilization. In the viewpoint of the antibacterial property and harmlessness to the environment and human body, the nano metal particles are preferably Ag, Zn and Cu nano metal particles, more preferably, nano Ag. Especially, the nano Ag can improve the efficiency of the Kimchi lactic aid bacteria culture fluid.
[26] In accordance with one aspect of the present invention, the Kinxhi lactic acid bacteria culture fluid can be singly coated on the surface of the article, for giving the antimicrobial property. In accordance with another aspect of the present invention, both the Kimchi lactic acid bacteria culture fluid and the nano metal particles can be coated on the surface of the article, for giving the antimicrobial property. Expected is the synergy of the Kimchi lactic acid bacteria culture fluid with the antibacterial and antivirus effects and the nano metal particles with the antibacterial function. According to the characteristic of the article, the characteristic of the manufacturing process, and the necessity of the antimicrobial property, the Kirrchi lactic add bacteria culture fluid can be used singly or in combination with the nano metal particles. Preferably, 5 to 20
wt% of Kimchi lactic acid bacteria culture fluid and 100 to 2000 ppm of nano metal particles are coated on the surface of the article. This range semipermanently gives the antimicrobial property to the surface of the article in consideration of the antibacterial and antivirus effects over 99%, the ooating characteristic and the mixing characteristic. However, if necessary, it can be appropriately adjusted.
[27] The present invention also provides the manufacturing method of the article with the antimicrobial property which includes a step for coating the Kimchi lactic acid bacteria culture fluid or both the Kimchi lxtic acid bacteria culture fluid and the nano metal particles on the surface of the article.
[28] The step for coating the surface of the article with the Kimchi lactic acid bacteria culture fluid, or both the Kimchi lxtic acid bacteria culture fluid and the nano metal particles can be performed according to a general method in the field to which the present invention pertains. Any kinds of methods which can evenly coat the surface of . the article can be used.
[29] When the Kimchi lactic add bacteria culture fluid is singly coated, the Kimchi lactic add bacteria culture fluid can be coated directly on the surface of the article. An appropriate fixation technique can be chemically or mechanically used to fix the Kimchi lactic add bxteria culture fluid to the surface of the article. In addition, a method of preparing a coating solution containing the Kimchi lactic acid bacteria culture fluid, and spraying the coating solution to the surface of the article or dipping the article in the ooating solution can be. used to coat the surface of the article. The coating solution can be water or ethanol, which is not intended to be limiting. Any solution containing the Kimchi lactic add bacteria culture fluid at an appropriate amount and giving the antimicrobial property to the surface of the article by ooating can be used as the coating solution without speάal restrictions in kind and manufacturing process. The publicly-known spraying method such as air spray can be used, which is not intended to be limiting. Any kinds of methods which can evenly coat the surface of the article can be employed. In addition, the general dipping method can be used without spedal restrictions. Preferably, the amount of the Kimchi lactic add bacteria culture fluid ranges from 5 to 20 wt%, which is not intended to be limiting. If necessary, the amount of the Kimchi lactic add bacteria culture fluid can be appropriately adjusted.
[30] Alternatively, in the case that the Kimchi lactic add bacteria culture fluid and the nano metal particles are coated together, the Kimchi lactic add bacteria culture fluid and the nano metal particles can be sequentially coated on the surface of the target
article. According to the sequential coating process, the nano metal particles is coated on the surface of the article, and then the Kirrchi lactic acid bacteria culture fluid is coated on the surface of the article coated with the nano metal particles. The step for coating the nano metal particles on the surface of the article can be performed according to a method publicly known in this field. If necessary, the nano metal particles can be modified for easy coating depending on the characteristic of the article. In addition, the step for coating the Kirrchi lactic acid bacteria culture fluid on the surface of the article coated with the nano metal particles can be performed according to a method generally used in this field without special restrictions. A chemical or mechanical method can be appropriately used to fix the Kimchi lactic acid bacteria to the article coated with the nano metal particles. Any method of evenly coating the surface of the article, such as spraying and dipping can be used for coating. Conversely, it is possible to be coated with the Kimchi lactic acid bacteria culture fluid first, and coated with the nano metal particles on the surface of the article coated with the Kimchi lactic acid bacteria culture fluid. It is also possible to prepare a coating solution containing the Kimchi lactic add bacteria culture fluid and the nano metal particles by mixing the two substances, and coat the coating solution on the surface of the article by spraying or dipping. Any method of preparing the coating solution can be employed without special restrictions, so far as the Kimchi lactic acid bacteria culture fluid and the nano metal particles can be coated on the surface of the article to give the antimicrobial property. Preferably, the amount of the Kirrchi lactic acid bacteria culture fluid ranges from 5 to 20 wt%, and the content of the nano metal particles ranges from 100 to 2000 ppm. This range semipermanently gives the antimicrobial property to the surface of the article in consideration of the antibacterial and antivirus effects over 99%, the coating characteristic and the mixing characteristic. However, if necessary, this range can be appropriately adjusted.
[31] Further, in accordance with the present invention, in the case that the Kirrchi lactic acid bacteria culture fluid is coated on the surface of the article, the Kimchi lactic acid bacteria culture fluid can be mixed with the binder before the coating step. The binder improves the inter-coupling action between the surface of the article and the Kimchi lactic acid bacteria culture fluid, and reduces the elution rate of the Kimchi lactic add bacteria culture fluid, thereby maintaining the antimicrobial performance. Accordingly, it is more advantageous to mix the Kirrchi lactic add bacteria culture fluid with the binder than to singly use the Kirrchi lactic add bacteria culture fluid. Any method of mixing the Kimchi lactic add bacteria culture fluid with the binder can be
used without special restrictions, so far as the Kirrchi lactic acid bacteria culture fluid can be coated on the surface of the article. The content ratio of the Kinxhi lactic acid bacteria culture fluid to the binder is not specially restricted but appropriately adjusted. If necessary, an inorganic pigment can be added.
[32] In accordance with one embodiment of the present invention, the coating solution containing the Kinxhi lactic add bacteria culture fluid and the nano metal particles was prepared, and spray-coated on an aluminum mesh filter, thereby obtaining the filter with the antimicrobial property. In one experiment of the present invention, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa were used to test the antibacterial activity of the filter with the antimicrobial property. As a result, the filter with the antimicrobial property showed excellent antibacterial activity to Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. In another experiment of the present invention, H5N1, which was an avian influenza virus, was used to test the antivirus activity of the filter. As a result, the filter showed a high virus reduction rate.
[33] On the other hand, the manufacturing method can further include a step for washing the target article with proper wash water, and a step for drying the article by a thermal treatment after the washing, prior to coating the Kinxhi lactic acid bacteria culture fluid on the surface of the article. In addition, the manufacturing method can further include a step for drying the article naturally or by a thermal treatment after coating the Kimchi lactic acid bacteria culture fluid on the surface of the article. The thermal treatment serves to fix the Kinxhi lactic acid bacteria culture fluid and the nano metal . particles to the surface of the article. A drying time and a drying temperature of the article are adjustable according to the shape, kind and size of the article. In case the target article is made of metal, it is advantageous to remove oil elements sticking to the surface of the article in the manufacturing or keeping process.
[34] In accordance with the present invention, if necessary, the manufactured article can be post-processed into a wanted shape and appropriately used. Especially, the air filter can be cut into a wanted size and used as a filter of an air purifier. The air filter can be used singly or in combination with the existing air filter and deodorization filter in the same product. The air filter can be applied to various air purifiers for home or business use, refrigerators, vehicles, and other electric home appliances.
[35]
[36] The present invention will now be explained by the following examples. Such examples are not intended to be limiting.
[37]
[38] Example 1
[39] An aluminum mesh made by Airphil corporation was immersed into 2.5 % NaOH solution for about 3 minutes, to remove oil components. Then, the oil removed- aluminum mesh was washed with 2.5 % NaOH solution. The washing step was repeated 7 times. A thermal treatment was performed on the washed aluminum mesh by drying in a dry oven at a temperature of 4O0C for 2 hours.
[40]
[41] Example 2
[42] 10 g of dry powder of culture fluid of Leuconostoc citreum selected from the
Leuconostoc sp. Kimchi lactic aid bacteria was mixed with 15 g of silicone modified acryl resin binder, 3 g of nano zinc, 1 g of nano silver and 0.5 g of nano copper, and dissolved in a water as a solvent, thereby preparing a coating solution containing Kimchi lactic acid bacteria culture fluid. The coating solution was air-sprayed on the aluminum mesh prepared in Example 1 and then the coated aluminum mesh was dried. Obtained was an aluminum mesh filter sample coated with the Kimchi lactic acid bacteria culture fluid and the nano metal particles.
[43]
[44] Test Example 1 : Antibacterial property test
[45] The antibacterial property of the aluminum mesh coated with theKimchi lactic acid bacteria culture fluid in Example 2 was tested according to a shake flask method (KS M 0146-2003) by using Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 6538) and Pseudomonas aeruginosa (ATCC 27853).
[46] 1 ml of Escherichia coli culture, Staphylococcus aureus culture and Pseudomonas aeruginosa culture were respectively coated on the aluminum mesh filter samples (1.0 cmxl.O cm) prepared in Example 2, respectively. The aluminum mesh filter samples coated with each strain culture were immersed into a Erlenmeyer flask containing LB broth, and shake incubated at 35±1°C in 120 rpm for 3 hours. Ibr comparison, 1 ml of each strain culture was inoculated into a Erlenmeyer flask containing LB broth, and shake incubated in the same condition. The incubated cell cultures were taken up to spread on a LB plate, and incubated at 37°C for 48 hours. The colonies of each bacteria were counted. The results are shown in the following Tables 1 to 3.
[47]
[48] Table 1
[49] *cfu/ml : colony formation unit per ml [50] [51] Table 2
[52] *cfu/ml : colony formation unit per ml [53] [54] Table 3
[55] *cfu/ml : colony formation unit per ml [56] [57] As known from the above Tables 1 to 3, as compared with the comparisons, the aluminum mesh filter coated with the Kirrchi lactic add bacteria culture fluid has excellent antibacterial activity to microorganisms, such as Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa.
[58] [59] Test Example 2 : Antivirus property test [60] A coating solution containing Kimchi lactic add bacteria culture fluid was prepared and sprayed on surfaces of an aluminum mesh filter, a carbon filter and a HEPA filter,
respectively, thereby obtaining three kinds of filter samples coated with the Kirrchi lactic acid bacteria culture fhid. The antivirus property test was performed on each filter. [61] Avian influenza virus H5N1 isolate was used to test the antivirus effect of the
Kirrchi lactic acid bacteria culture fluid. Mardin-Darby Canine Kidney (MDCK) cell lines from dog kidney cells were used as host cells of viruses, [62] Erst, 100 ≠, of MDCK cells (5x104 cells/ml) were seeded onto each well of a
96-well plate, and incubated in 5 % CO incubator at 37°C for 24 hours, so that the
2 cells could cover the bottoms of the wells in a monolayer shape. A virus solution (1/10 v/v) diluted with PBS was added to each well containing the three kinds of samples (aluminum mesh filter, carbon filter and HEPA filter, respectively) coated with the Kimchi lactic acid bacteria culture fluid, and incubated at 37°C. for comparison, the virus solution was incubated in the same manner in regard to the same three samples which were not coated with theKimchi lactic acid bacteria culture fhid. The weight of each sample was recorded before addition of the virus solution. A culture inoculated with the virus solution and a culture which was not inoculated with the virus solution were prepared for a positive comparison and a negative comparison to the viral cytopathic effect (vCPE), respectively.
[63] In order to test the antivirus effect, the 10-times diluted culture for the aluminum filter sample coated with the Kirrchi lactic acid bacteria culture fluid, the aluminum filter sample which was not coated with the Kirrchi lactic acid bacteria culture fluid, and the positive comparison was inoculated into the seven rows of the 96-well plates in quadruple. And the culture for the negative comparison was inoculated into thermal eighth row. After the inoculation, the plates were incubated in 5% CO incubator at 37°C for 3 days. The vCPE of the plate was observed, and the virus titer was determined as TCID (50% tissue culture infective dose). The antivirus effect was
50 represented by a virus reduction rate (%). Here, the virus reduction rate was a percentage value of logTCID /ml converted by using a value obtained by subtracting the weight of the sample which was not coated with the Kirrchi lactic acid bacteria culture fluid from the weight of the sample coated with the Kirrchi lactic acid bacteria culture fluid. The results are shown in the following Tables 4 to 6.
[64]
[65] Table 4
Virus titer Coated Al mesh Non-coated Al Virus reduction
[66] [67]
[68] [69]
[70] [71] As known from the above Tables 4 to 6, the aluminum mesh filter, the carbon filter and the HEPA filter coated with the Kinrhi lactic acid bacteria culture fluid have the virus reduction rate almost over 99%, namely, the excellent antivirus effect.
[72] [73] Application Examples [74] In accordance with the present invention, the article can be used for various uses.
The electric home appliances needing the antimicrobial property are a refrigerator, washing machine, air conditioner, cleaner, air freshener, water purifier, humidifier, dishwashing machine, microwave oven, VTR, computer, television, etc..
[75] 1) Application to refrigerator
[76] The present invention can be applied to an inner wall, a cool air duct, a ventilation fan, a door handle, a vegetable box, an air filter, an ice maker, a basket, and an outer surface of the refrigerator.
[77] 2) Application to washing machine
[78] The surfaces of the parts of the washing machine such as an inner tub, an outer tub, a pulsator, a detergent box, a drum lift and a tub can be coated. The present invention can be applied to filters (air filter and water filter) in a dry passage, a water supply/ drain passage, and a circulation passage.
[79] 3) Application to air conditioner
[80] The present invention can be applied to fins of a heat exchanger, an electric heat exchanger (ventilation element), a ventilation fan (metal and molded matter), an air passage (suction unit, discharge unit, louvers, grill, etc.), and an air filter of an indoor unit.
[81] 4) Application to air freshener
[82] A special Kirrchi lactic add bacteria culture fluid filter can be mounted as one of multiple filters of the air freshener.
[83] 5) Application to cleaner
[84J The user often touches the cleaner with his/her hands. Therefore, the surface of the cleaner can be coated. The sterilization effect can be improved by coating an inside of a dust container. The present invention can also be applied to an exhaust filter of the cleaner.
[85] 6) Application to dishwashing machine
[86] The present invention can be applied to a tub, a sump, a screen, a spray arm, a water filter, etc.
[87] Although the preferred embodiments of the present invention have been described, it is understood that the present invention should not be limited to these preferred embodiments but various changes and modifications can be made by one skilled in the art within the spirit and scope of the present invention as hereinafter claimed. Industrial Applicability
[88] As discussed earlier, in accordance with the present invention, the article needing the antimicrobial effect is provided with the antimicrobial property, by using the
Kimchi lactic add bacteria culture fluid with the wide antibacterial spectrum singly or in combination with the nano metal particles. The article is also provided with the antivirus property to avian influenza viruses and other viruses with the similar mechanism to that of avian influenza viruses due to the excellent antivirus activity of the Kimchi lactic add bacteria culture fluid. [89]
Claims
[1] An article with an antimicrobial property, which is coated with the Kinrhi lactic acid bacteria culture fluid or both the Kimchi lactic acid bacteria culture fhid and nano metal particles.
[2] The article with the antimicrobial property of claim 1, wherein the Kinrhi lactb acid bacteria culture fluid is selected from the group consisting of the Kinrhi lactic acid bacteria culture fluid itself, a concentrate of the Kimchi lactic acid bacteria culture fluid, a dry matter of the Kinrhi lactic acid bacteria culture fluid, and mixtures thereof.
[3] The article with the antimicrobial property of either claim 1 or 2, wherein the
Kimchi lactic acid bacteria are selected from the group consisting of Leuconostoc sp. Kimchi lactic acid bacteria, Lactobacillus sp. Kinrhi lactic acid bacteria, Weissella sp. Kimchi lxtic aid bacteria, and mixtures thereof.
[4] The article with the antimicrobial property of claim 3, wherein the Leuconostoc sp. Kinrhi lactic acid bacteria are selected from the group consisting of Leuconostoc citreum, Leuconostoc lactis, Leuconostoc mesenteroides subsp. dextranicum, Leuconostoc mesenteroides subsp. mesenteroides, Leuconostoc argentinum, Leuconostoc carnosum, Leuconostoc gellidum, Leuconostoc kimchii , Leuconostoc inhae, Leuconostoc gasicomitatum, and mixtures thereof.
[5] The article with the antimicrobial property of claim 3, wherein the Lactobacillus . sp. Kimchi lactic acid bacteria are selected from the group consisting of Lactobacillus brevis, Lactobacillus acidophilus, Lactobacillus bulgaricus, Lactobacillus plantarum, Lactobacillus kimchii, Lactobacillus paraplantarum, Lactobacillus curvatus subsp. curvatus, Lactobacillus sakei subsp. sakei, and mixtures thereof.
[6] The article with the antimicrobial property of claim 3, wherein the Weissella sp.
Kinrhi lactic acid bacteria are selected from the group consisting of Weissella koreensi, Weissella hanii, Weissella kimchii, Weissella soli, Weissella confiisa, and mixtures thereof.
[7] The article with the antimicrobial property of claim 1 , wherein the nano metal particles are selected from the group consisting of Ag, Zn, Cu, Pt, Cd, Pd, Rh, Cr, and mixtures thereof.
[8] The article with the antimicrobial property of claim 7, wherein the nano metal particles are selected from the group consisting of Ag, Zn, Cu, and mixtures
thereof.
[9] The article with the antimicrobial property of claim 1 , which is one of the whole electric home appliances or the internal or external parts of the electric home appliances, such as a refrigerator, washing machine, drying machine, air conditioner, air freshener, fan, cleaner, electric pot, electric cooker, dishwashing machine, dish drying machine, water purifier, microwave oven, mixer, VTR, television and home theater.
[10] The article with the antimicrobial property of claim 1, which is a filter.
[11] The article with the antimicrobial property of claim 10, wherein the material of the filter is selected from the group consisting of a glass fiber, an ion exchange fiber, a cellulose fiber and an asbestos fiber.
[12] The article with the antimicrobial property of claim 10, wherein the material of the filter is a metal or a plastic.
[13] The article with the antimicrobial property of claim 10, wherein the type of filter is selected from the group consisting of honeycomb type, grain type, net type, filter paper type, cotton type, mesh type, plate type or foam type.
[14] The article with the antimicrobial property of claim 10, wherein the filter is an air cleaning filter.
[15] The article with the antimicrobial property of claim 1, further comprising a binder selected from the group consisting of silicone modified acryl resin, urethane resin, acryl resin and silicone resin.
[16] The article with the antimicrobial property of claim 1, wherein the Kimchi lactic acid bacteria culture fluid is coated in the range of 5 to 20 wt%, and the nano metal particles are coated in the range of 100 to 2000 ppm.
[17] A manufacturing method of an article with an antimicrobial property as recited in claim 1, comprising a step for coating the Kimchi lactic acid bacteria culture fluid or both the Kimchi lactic add bacteria culture fluid and nano metal particles on the surface of the article.
[18] The manufacturing method of claim 17, wherein the coating step comprises a step for spraying a coating solution containing the Kimchi lactic acid bacteria culture fluid or both the Kimchi lactic add bacteria culture fluid and nano metal particles to the surface of the article, or dipping the article in the coating solution.
[19] The manufacturing method of claim 17, wherein the coating step comprise a sequential step for coating the nano metal particles on the surface of the article
and then ooating the Kimchi lactic acid bacteria culture fluid on the surface of the article coated with the nano metal particles.
[20] The manufacturing method of any one of claims 17 to 19, further comprising a step for mixing a binder selected from the group consisting of silicone modified acryl resin, urethane resin, acryl resin and silicone resin with the Kimchi lactic acid bacteria culture fluid prior to the coating step.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06812619A EP1959740A2 (en) | 2005-11-15 | 2006-11-15 | Antimicrobial coating based on kimchi lactic acid bacteria |
| US12/084,580 US8124016B2 (en) | 2005-11-15 | 2006-11-15 | Articles with antimicrobial property and manufacturing method thereof |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050109352A KR20070051587A (en) | 2005-11-15 | 2005-11-15 | Antimicrobial stuff comprising kimchi lactic acid bacteria fermented-solution capsule and manufacturing method thereof |
| KR1020050109351A KR20070051586A (en) | 2005-11-15 | 2005-11-15 | Antimicrobial stuff comprising kimchi lactic acid bacteria fermented-solution and manufacturing method thereof |
| KR10-2005-0109351 | 2005-11-15 | ||
| KR10-2005-0109352 | 2005-11-15 | ||
| KR1020050112626A KR20070054540A (en) | 2005-11-23 | 2005-11-23 | Antimicrobial stuff and manufacturing method thereof |
| KR10-2005-0112626 | 2005-11-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007058476A2 true WO2007058476A2 (en) | 2007-05-24 |
| WO2007058476A3 WO2007058476A3 (en) | 2007-10-18 |
Family
ID=38049086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2006/004816 WO2007058476A2 (en) | 2005-11-15 | 2006-11-15 | Antimicrobial coating based on kimchi lactic acid bacteria |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8124016B2 (en) |
| EP (1) | EP1959740A2 (en) |
| WO (1) | WO2007058476A2 (en) |
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|---|---|---|---|---|
| EP1952079A2 (en) * | 2005-11-23 | 2008-08-06 | LG Electronics Inc. | Refrigerator |
| WO2011055893A1 (en) | 2009-11-03 | 2011-05-12 | Lg Electronics Inc. | Air cleaning filter comprising protein deactivating agent and process for producing same |
| WO2011055898A1 (en) | 2009-11-03 | 2011-05-12 | Lg Electronics Inc. | Air cleaning filter comprising kimchi lactic acid bacteria and disinfectant and process for producing the same |
| US8197728B2 (en) | 2005-11-15 | 2012-06-12 | Lg Electronics, Inc. | Molded articles with antimicrobial property and manufacturing method thereof |
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| EP1959740A2 (en) | 2005-11-15 | 2008-08-27 | LG Electronics Inc. | Antimicrobial coating based on kimchi lactic acid bacteria |
| JP2014516524A (en) * | 2011-05-12 | 2014-07-17 | プロバイオニック カンパニー リミテッド | Antibacterial antiviral rice lactic acid bacteria fermented food composition containing an active ingredient of rice saccharified liquid fermented with kimchi lactic acid bacteria |
| US20130199375A1 (en) * | 2012-02-06 | 2013-08-08 | Bob Wheeler | Air filter with air freshener |
| US9925295B2 (en) | 2012-05-09 | 2018-03-27 | Amedica Corporation | Ceramic and/or glass materials and related methods |
| US10806831B2 (en) | 2012-05-09 | 2020-10-20 | Sintx Technologies, Inc. | Antibacterial biomedical implants and associated materials, apparatus, and methods |
| US11039620B2 (en) | 2014-02-19 | 2021-06-22 | Corning Incorporated | Antimicrobial glass compositions, glasses and polymeric articles incorporating the same |
| US9622483B2 (en) | 2014-02-19 | 2017-04-18 | Corning Incorporated | Antimicrobial glass compositions, glasses and polymeric articles incorporating the same |
| US11039621B2 (en) | 2014-02-19 | 2021-06-22 | Corning Incorporated | Antimicrobial glass compositions, glasses and polymeric articles incorporating the same |
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| US8197728B2 (en) | 2005-11-15 | 2012-06-12 | Lg Electronics, Inc. | Molded articles with antimicrobial property and manufacturing method thereof |
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| US8609027B2 (en) * | 2009-11-03 | 2013-12-17 | Lg Electronics Inc. | Air cleaning filter comprising protein deactivating agent and process for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090151571A1 (en) | 2009-06-18 |
| EP1959740A2 (en) | 2008-08-27 |
| US8124016B2 (en) | 2012-02-28 |
| WO2007058476A3 (en) | 2007-10-18 |
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